06EC64 - ANTENNAS AND PROPAGATION |
PART – A |
UNIT – I |
ANTENNA BASICS: Introduction, basic Antenna parameters, patterns,
beam area, radiation intensity, beam efficiency, diversity and gain, antenna
apertures, effective height, bandwidth, radiation, efficiency, antenna
temperature and antenna filed zones. |
UNIT – II |
POINT SOURCES AND ARRAYS: Introduction, point sources, power
patterns, power theorem, radiation intensity, filed patterns, phase patterns.
Array of two isotropic point sources, non-isotropic but similar point sources,
principles of pattern multiplication, examples of pattern synthesis by pattern
multiplication, non-isotropic point sources, broad side array with non uni
polar amplitude distribution, broad side versus end fire array, direction of
maxima fire arrays of n isotropic point sources of equal amplitude and
spacing. |
UNIT – III |
ELECTRIC DIPOLES AND THIN LINEAR ANTENNAS: Introduction,
short electric dipole, fields of a short dipole, radiation resistance of short
dipole, radiation resistances of lambda/2 Antenna, thin linear antenna, micro
strip arrays, low side lobe arrays, long wire antenna, folded dipole antennas. |
PART – B |
UNIT – IV and V |
LOOP, SLOT, PATCH AND HORN ANTENNA: Introduction, small
loop, comparison of far fields of small loop and short dipole, loop antenna
general case, far field patterns of circular loop, radiation resistance,
directivity, slot antenna, Balinet’s principle and complementary antennas,
impedance of complementary and slot antennas, patch antennas, horn
antennas, rectangular horn antennas. |
UNIT – VI |
ANTENNA TYPES: Helical Antenna, Yagi-Uda array, corner reflectors,
parabolic reflectors, log periodic antenna, lens antenna, antenna for special
applications – sleeve antenna, turnstile antenna, omni directional antennas,
antennas for satellite antennas for ground penetrating radars, embedded
antennas, ultra wide band antennas, plasma antenna. |
UNIT – VII and VIII |
RADIO WAVE PROPAGATION: Introduction, Ground wave propagation,
free space propagation, ground reflection, surface wave, diffraction.
TROPOSPHERE WAVE PROPAGATION: Troposcopic scatter,
Ionosphere propagation, electrical properties of the ionosphere, effects of
earth’s magnetic field. |
REFERENCE |
TEXT BOOKS: |
1. Antennas, John D. Krauss, III (SEI) edition, McGraw-Hill
International edition, 2006
2. Antennas and Wave Propagation - Harish and Sachidananda:
Oxford Press 2007 |
Reference Books |
1. Antenna Theory Analysis and Design - C A Balanis, 2nd ED, John
Wiley, 1997
2. Antennas and Propagation for Wireless Communication
Systems - Sineon R Saunders, John Wiley, 2003.
3. Antennas and wave propagation - G S N Raju: Pearson Education
2005 |
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